device_settings_cache.cc revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/chromeos/settings/device_settings_cache.h"
6
7#include <string>
8
9#include "base/base64.h"
10#include "base/bind.h"
11#include "base/prefs/pref_registry_simple.h"
12#include "base/prefs/pref_service.h"
13#include "chrome/browser/chromeos/settings/cros_settings.h"
14#include "chrome/common/pref_names.h"
15#include "policy/proto/device_management_backend.pb.h"
16
17namespace em = enterprise_management;
18
19namespace chromeos {
20
21namespace device_settings_cache {
22
23void RegisterPrefs(PrefRegistrySimple* registry) {
24  registry->RegisterStringPref(prefs::kDeviceSettingsCache, "invalid");
25}
26
27bool Store(const em::PolicyData& policy, PrefService* local_state) {
28  if (local_state) {
29    std::string policy_string = policy.SerializeAsString();
30    std::string encoded;
31    base::Base64Encode(policy_string, &encoded);
32    local_state->SetString(prefs::kDeviceSettingsCache, encoded);
33    return true;
34  }
35  return false;
36}
37
38bool Retrieve(em::PolicyData *policy, PrefService* local_state) {
39  if (local_state) {
40    std::string encoded =
41        local_state->GetString(prefs::kDeviceSettingsCache);
42    std::string policy_string;
43    if (!base::Base64Decode(encoded, &policy_string)) {
44      // This is normal and happens on first boot.
45      VLOG(1) << "Can't decode policy from base64.";
46      return false;
47    }
48    return policy->ParseFromString(policy_string);
49  }
50  return false;
51}
52
53}  // namespace device_settings_cache
54
55}  // namespace chromeos
56